Thursday, June 14, 2012

Fossil fuels, the source of much of our energy, are formed under intense pressure and heat over millions of years from the buried remains of plants and animals. By burning these fossil fuels to release heat from the chemical energy they contain, steam can be raised in a power station boiler. The heat and pressure energy in the steam is turned into work in a turbine, which drives a generator to produce electricity.However, by burning fossil fuels we are releasing carbon dioxide (CO2) into the atmosphere faster than plants can absorb it. CO2 is a major contributor to the greenhouse effect; as more fuels are burnt, the atmosheric concentration of CO2 increases, causing the average global temperature to rise. Climate change affects the distribution of climatic regions, sea level changes and ultimately, the planet's ability to support human communities. Burning fossil fuels also contributes to acid rain, which is implicated in the loss of wildlife in lakes and rivers, the reduction of land ferility and the destruction of trees.We need to start taking steps to reduce our energy consumption at home and in school.

FACTS AND FIGURES

The recommended temperature for classrooms is 18 degrees C. Every 1 degree C increase in temperature over the above figures could add up to 10% to cost of heating billls.

A photocopier left switched on overnight wastes enough energy to make 5,300 A4 copies.

It is estimated that we only have enough oil in the world for another 50 years,

On average, a car in Ireland travels 20,000km a year, releasing 2,895kg of carbon into the atmospherre.